Ever try to keep going when the readout shows ZERO? Do it I dare you ... bet you make it to work and then to the nearest gas station (provided you drive normal or let's say with the flow of traffic). there is reserve in the tank past the ZERO point ... go try it out.

when you get the gas from the highway rest stop instead of the one at the country store 2 min away even though its 50 cents more a gallon because there is no way you are putting no-brand gas in this thing